
PRESSURE (psi)PRESSURE (bar) PRESSURE (psi)PRESSURE (bar) Drilling Operations SGS CSOGOSLCAONOTLRAENCTORMEMCOENMDMAETNIODNASTIONS Coolant Recommendations ◾ Coolant works to mobilize chips away from the RECOMRMECEONMDEMDECNODOELDACNOTOPLRAENSTSPURREESSURE cut zone, reduce the heat created during thecutting process and minimize friction.16001600 BY DIABMYEDTIEARM–EpTsEiR – psi 1400 1400 ◾ It is important to optimize the coolant pressure 1200 1200 and position in order to gain the full benefitscoolant offers the cutting process.10001000 800 800 ◾ Proper coolant application promotes greateroperating parameters, greater material removal600600 rates, improved surface finishes, predictable tool 400 400 life, reduced power consumption and reduced 200 200 cycle times. 0 30 34 46 68 8 10 1012 1214 1416 1618 18 ◾ Pressure is important, but more importantly is DRILL DDIRAIMLLEDTIEARM(mETmE)R (mm) consistency of the pressure and application onto the tool; intermittent cooling of carbideleads to thermal stressing of the material andthe formation of “microcracks.”120120RECOMRMECEONMDEMDECNODOELDACNOTOPLRAENSTSPURREESSUREBY DIABMYEDTIEARM–EbTaErR – bar ◾ Proper cleanliness and filtration of coolants is 100 100 important in order for the coolant to maintain its beneficial properties, and also to avoid a 80 80 reduction in coolant pressure or the possibilityof clogging the coolant channels in coolant6060 through drills. 40 40 20 20 0 30 34 46 68 8 10 1012 1214 1416 1618 18 DRILL DDIRAIMLLEDTIEARM(mETmE)R (mm) LARGELTAIRPG–ELTOIWP –VLEOLOWCVITEYLOCITY SMALLSTMIPAL–LHTIIGPH–VHEILGOHCVITEYLOCITY NO COVNEORCAOGVEEARTAMGEAAXTIMMUAMXIDMEUPMTHDEPTH COMPLCEOTME PCLOEVTEERCAOGVEERAGE ◾ Reducing the nozzle size helps maximize the cooling benefits of the unique double margin design on the Hi-PerCarb drill by increasing velocity. Aim the nozzles in line with the secondary flute located between the two margins as well as the flute for best results. www.kyoceraD-sRgILsLtoSol.com DRILLS 227